Granular fracture

A type of irregular surface produced when metal is broken that is characterized by a rough, grainlike appearance, rather than a smooth or fibrous one. It can be sub classified as transgranular or intergranular. This type of fracture is frequently called crystalline fracture; however, the inference that the metal broke because it "crystallized" is not justified, because all metals are crystalline in the solid state. See also fibrous fracture and silky fracture. - Internet Partner